fix(i18n): License-Status-Tags + letzte hardkodierte Strings entfernt

- statusTag() akzeptiert jetzt t als Parameter — Aktiv/Trial/
  Abgelaufen/Ungültig gehen durch license.tag* Keys
- en+de common.json: license.tagActive/tagTrial/tagExpired/tagInvalid

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

management-ui/src/i18n/locales/en/common.json

@@ -970,7 +970,11 @@
     "confirmClearHint": "The system will fall back to trial-mode once the key is deleted.",
     "lastVerifyFailed": "Last server verify failed",
     "trialExpiring": "Trial expires in {{days}} day(s)",
-    "trialExpiringHint": "Activate a license before the trial period ends."
+    "trialExpiringHint": "Activate a license before the trial period ends.",
+    "tagActive": "Active",
+    "tagTrial": "Trial",
+    "tagExpired": "Expired",
+    "tagInvalid": "Invalid"
   },
   "licenseBanner": {
     "expired": "License expired or invalid.",